Workbench of spot welding machine

Abstract

The invention provides a spot welding machine workbench which comprises a workbench body, and a positioning frame is arranged on the workbench body. The fixed sliding plate assembly comprises a hanging plate, and the fixed sliding plate assembly is connected with the positioning frame through the hanging plate; the sliding block assembly is connected with the fixed sliding plate assembly, and the sliding block assembly and the fixed sliding plate assembly move relatively; the air cylinder is arranged on the fixed sliding plate assembly and used for pressurizing the machined part; the welding gun is arranged on the sliding block assembly, is provided with a button for controlling a power switch, and is used for independently controlling the welding electrification of the machined workpiece; the control pedal is connected with the air cylinder and used for controlling the air cylinder to pressurize. Pressurizing and a power switch of the electric welding machine are separately controlled, the air cylinder is used for pressurizing, the power switch is a power-on button on a welding gun, and the problems that a spot welding machine is poor in applicability, spark discharge ablation is caused, welding spots are not firm, the appearance is uneven and has burrs, thin weldments are prone to breakdown, the operation requirement is high, and the work efficiency is not high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of spot welding, in particular to a spot welding machine workbench. Background Art

[0002] Handheld mobile spot welders are easy and flexible to use, capable of welding double-layer or multi-layer metal plates in a variety of shapes and positions. Their disadvantages are that they rely on manual pressure application, which is labor-intensive, unstable pressure, and uneven weld quality. Furthermore, the quality and speed of welding depend primarily on the worker's proficiency and personal skills. Fixed, automated spot welders offer stable weld quality. Once the process parameters are properly adjusted, welds of consistent quality can be obtained, with stable welding quality and speed, low labor intensity, and minimal requirements for individual worker skills. However, they can only weld double-layer metal plates in a few shapes and positions, making them suitable only for certain fixed, mass-produced products. Equipment needs to be customized for specific products, and a single device can only weld one or several processes, necessitating a significant investment in the equipment.

[0003] Generally, arc discharge is easy to occur between the electrode and the workpiece of a fixed spot welding machine, resulting in defects in the quality of the weld. When the welded metal plate is very thin, the weld is prone to breakdown.

[0004] In summary, the spot welding machines currently used have the problems of poor adaptability, high operating requirements and low work efficiency. Summary of the Invention

[0005] The problem solved by the invention is that the spot welding machine has poor adaptability, high operation requirements and low working efficiency.

[0006] In order to solve the above problems, the present invention provides a spot welding machine workbench, which includes a workbench body, a fixed slide assembly, a slider assembly, a cylinder, a welding gun and a control pedal. A positioning frame is provided on the workbench body; the fixed slide assembly includes a hanging plate, and the fixed slide assembly is connected to the positioning frame via the hanging plate; the slider assembly is connected to the fixed slide assembly, and the slider assembly and the fixed slide assembly move relative to each other; the cylinder is provided on the fixed slide assembly and is used to pressurize the workpiece; the welding gun is provided on the slider assembly, and the power button on the welding gun is used alone to individually control the welding power of the workpiece; the control pedal is connected to the cylinder and is used to individually control the cylinder to pressurize the metal plate to be welded. The welding table is provided with a copper plate fixed by welding and a copper plate that can slide as an electrode pad.

[0007] Compared with the existing technology, the technical effect achieved by this technical solution is as follows: the workbench body carries the fixed slide assembly, the slider assembly, the cylinder, and the welding gun; the positioning frame is used to support and fix the position of the fixed slide assembly; the fixed slide assembly is connected to the positioning frame through a hanging plate; the fixed slide assembly is used to carry the slider assembly and fix the cylinder; the slider assembly is used to realize the movement of the welding gun on the fixed slide assembly; the control pedal is used to independently control the cylinder to realize pressurization. When using the spot welding machine workbench provided by the present invention, first operate the control pedal to make the cylinder perform pressurization, then operate the welding gun power switch button to perform welding, and maintain pressurization for a period of time after welding is completed. Pressurization and power welding are controlled separately, which can effectively avoid the situation where arc discharge burns the workpiece and welding head during welding, greatly improve the firmness and beauty of the weld, greatly increase the thickness range of metal plates that can be welded by the welding machine, greatly reduce the technical difficulty of metal layer welding, and greatly improve work efficiency.

[0008] Furthermore, the fixed slide assembly includes a first plate body and a slider guide groove. The slider guide groove is provided on the first plate body; the slider assembly includes a second plate body, the second plate body is engaged with the slider guide groove, and the second plate body and the slider guide groove move relative to each other.

[0009] Compared to existing technologies, this technical solution achieves the following technical effects: the slider guide groove can restrict the slider assembly to move only along the first plate. During the spot welding operation, the operator can move the second plate in the first direction when necessary, thereby driving the welding gun in the first direction to complete the welding operation. After welding is completed, the second plate is moved in the second direction, thereby driving the welding gun away from the welding position.

[0010] Furthermore, the fixed slide assembly further includes a first cylinder fixing plate and a second cylinder fixing plate. The first cylinder fixing plate is connected to the hanging plate and the first plate body; the second cylinder fixing plate is disposed on the first plate body, specifically away from the hanging plate; and both the first cylinder fixing plate and the second cylinder fixing plate abut against the cylinder.

[0011] Compared with the existing technology, the technical effect achieved by this technical solution is: the first cylinder fixing plate and the second cylinder fixing plate are both in contact with the cylinder, which can limit the movement of the cylinder along the first plate body and fix the cylinder.

[0012] Furthermore, the slider assembly also includes a third cylinder fixing plate. The third cylinder fixing plate is arranged on one end of the second plate body close to the cylinder. The cylinder is provided with a piston shaft, which moves relative to the cylinder. The piston shaft is connected to the third cylinder fixing plate.

[0013] Compared with the existing technology, the technical effect achieved by this technical solution is: when the second plate moves in the first direction or the second direction, the third cylinder fixed plate moves in the same direction as the second plate. Since the piston shaft is connected to the third cylinder fixed plate, it drives the piston shaft to move, so that the cylinder can maintain pressure on the workpiece during welding.

[0014] Furthermore, the slider assembly further includes a limiting sleeve. The welding gun and the limiting sleeve are sleeved together; the limiting sleeve is arranged on an end of the second plate body away from the third cylinder fixing plate.

[0015] Compared with the existing technology, the technical effect achieved by this technical solution is: the limiting sleeve limits the welding gun head, so that the welding gun head can have a fixed landing point every time the operator operates.

[0016] Furthermore, the slider assembly further comprises a clamping plate, which is arranged between the limiting sleeve and the third cylinder fixing plate and clamps the welding gun.

[0017] Compared with the existing technology, the technical effect achieved by this technical solution is: the splint further limits the position of the welding gun, can prevent the welding gun body from swinging, and ensure that the welding gun is in the correct working position.

[0018] Furthermore, a fixing pin is provided on the splint, and the fixing pin is detachably connected to the splint; a mounting position is provided on the splint, and the fixing pin cooperates with the mounting position, and the fixing pin is fixed by a nut.

[0019] Compared to existing technologies, this solution achieves the following technical advantages: a fixing pin is inserted between the clamping plates and stops at the clamping plate opening, preventing the welding gun from falling out of the clamping plate opening. When the welding gun is no longer needed, the nut is loosened and the fixing pin is pulled out, allowing the welding gun to be removed from the slider assembly.

[0020] Furthermore, a first pad and a second pad are provided on the workbench body. The first pad is fixedly connected to the workbench body, and the second pad moves relative to the first pad to adjust the position of the workpiece.

[0021] Compared with the existing technology, the technical effect achieved by this technical solution is: a movable second pad and a fixed first pad are set, which can facilitate the welding of composite metal plates of various shapes and positions, and the welded parts and the second pad are not easy to stick together, the weld joints have beautiful appearance, and the maintenance interval of the welding gun head is greatly extended.

[0022] Furthermore, a wiring board is provided on the workbench body for connecting power wires.

[0023] Compared with the existing technology, the technical effect achieved by this technical solution is: connecting the wires puts the workbench into working state.

[0024] Furthermore, a first baffle is provided on the workbench body for limiting the position of the cooling pipe; a second baffle is also provided on the fixed slide assembly, and the second baffle is arranged on the side of the fixed slide assembly close to the hanging plate, and the second baffle is used to limit the position of the pipe connecting the cylinder and the control pedal.

[0025] Compared with the existing technology, the technical effect achieved by this technical solution is: the first gear bar limits the position of the cooling pipe to ensure that the cooling pipe does not fall out; the second gear bar limits the position of the pipe connecting the cylinder and the control pedal, and can also limit the position of the cylinder, and stop the space opening formed by the first cylinder fixing plate and the second cylinder fixing plate to prevent the cylinder from falling out.

[0026] In summary, the above-mentioned technical solutions of the present application can have one or more of the following advantages or beneficial effects: using a cylinder for pressurization to ensure that the pressure of the same welding product is uniform and consistent; the pressure is adjustable, and the thickness range of the plates suitable for welding by this welding machine is greatly increased; the power welding switch is controlled separately, and when welding, the pressure is first applied, and then the power is turned on. After the power is turned off, it is kept for a short time to allow the weld to cool and solidify, and then the cylinder is released to remove the pressure, which can completely avoid the local ablation caused by harmful spark discharge, greatly improving the strength and beauty of the weld, and at the same time, it can also greatly reduce the labor intensity of the operator and greatly reduce the technical difficulty of plate spot welding. Ordinary workers can master this welding process after practicing for a few hours, which greatly improves the welding efficiency. The provision of a movable second pad and a welded fixed first pad makes the workbench provided by the present invention convenient for welding composite metal plates of various shapes and positions, and the welded parts and the second pad are not prone to adhesion, the weld has a beautiful appearance, and the maintenance interval of the welding gun head is greatly extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the overall structure of the spot welding machine workbench provided by the present invention; Figure 2 Schematic diagram of the structure of the positioning frame; Figure 3 Schematic diagram of the structure of the fixed slide assembly; Figure 4 It is a structural diagram of the slider assembly; Figure 5 Schematic diagram of the combined structure of the fixed slide assembly and the slider assembly.

[0028] Description of reference numerals: 1-workbench body; 11-positioning frame; 12-first pad; 13-second pad; 14-connection board; 15-first baffle; 2-fixed slide assembly; 21-hanging plate; 22-first plate; 23-slider guide groove; 24-first cylinder fixing plate; 25-second cylinder fixing plate; 26-second baffle; 3-slider assembly; 31-second plate; 32-third cylinder fixing plate; 33-limiting sleeve; 34-clamping plate; 35-fixing pin; 4-cylinder; 41-piston shaft; 5-welding gun. DETAILED DESCRIPTION

[0029] The object of the present invention is to provide a spot welding machine workbench, which is used to increase the applicability of spot welding equipment and reduce the operating requirements for obtaining welds of the same quality.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] See also Figures 1 to 5 The present invention provides a spot welding machine workbench, comprising a workbench body 1, a fixed slide assembly 2, a slider assembly 3, a cylinder 4, a welding gun 5, and a control pedal. A positioning frame 11 is provided on the workbench body 1; the fixed slide assembly 2 includes a hanging plate 21, which is connected to the positioning frame 11 via the hanging plate 21; the slider assembly 3 is connected to the fixed slide assembly 2, and the slider assembly 3 and the fixed slide assembly 2 move relative to each other; the cylinder 4 is provided on the fixed slide assembly 2 and is used to pressurize the workpiece; the welding gun 5 is provided on the slider assembly 3 and is used to perform welding work on the workpiece; and the control pedal is connected to the cylinder 4 and is used to control the cylinder 4 to apply pressure.

[0032] The control pedal, the connecting pipes between the control pedal and the cylinder 4, and the power supply and cooling pipes connected to the welding gun 5 are not shown in the drawings.

[0033] The workbench body 1 carries the fixed slide assembly 2, the slider assembly 3, the cylinder 4, and the welding gun 5. The positioning frame 11 is used to support and fix the position of the fixed slide assembly 2. The fixed slide assembly 2 is connected to the positioning frame 11 via a hanging plate 21. The fixed slide assembly 2 is used to carry the slider assembly 3 and fix the cylinder 4. The slider assembly 3 is used to enable the welding gun 5 to move on the fixed slide assembly 2. The control pedal is used to control the cylinder 4 to achieve pressurization. When using the spot welding machine workbench provided by the present invention, the control pedal is first operated to cause the cylinder 4 to perform the pressurization work, and then the welding gun 5 is operated to perform the welding work. After welding is completed, the pressurization is maintained for a period of time. The separate control of pressurization and power welding can effectively avoid arc discharge during the welding process and effectively reduce the operation requirements for obtaining welds of the same quality.

[0034] like Figure 3As shown, the fixed slide assembly 2 includes a first plate 22 and a slider guide groove 23. The slider guide groove 23 is provided on the first plate 22; the slider assembly 3 includes a second plate 31, which is engaged with the slider guide groove 23 and moves relative to each other.

[0035] Preferably, at least two slider guide grooves 23 are provided on the first plate body 22 to ensure the guiding effect.

[0036] The slider guide groove 23 can restrict the slider assembly 3 to move only along the first plate 22. In conjunction with the spot welding process, the operator can move the second plate 31 in the first direction when necessary, thereby driving the welding gun 5 in the first direction to complete the welding work. After welding is completed, the second plate 31 is moved in the second direction, thereby driving the welding gun 5 away from the welding position.

[0037] Reference Figure 3 and Figure 5 The fixed slide assembly 2 further includes a first cylinder fixing plate 24 and a second cylinder fixing plate 25. The first cylinder fixing plate 24 is connected to the hanging plate 21 and the first plate body 22; the second cylinder fixing plate 25 is disposed on the first plate body 22, specifically away from the hanging plate 21. Both the first cylinder fixing plate 24 and the second cylinder fixing plate 25 abut against the cylinder 4.

[0038] The first cylinder fixing plate 24 and the second cylinder fixing plate 25 are both in contact with the cylinder 4 , and can limit the movement of the cylinder 4 along the first plate body 22 , thereby fixing the cylinder 4 .

[0039] Reference Figure 4 and Figure 5 The slider assembly 3 further includes a third cylinder fixing plate 32 . The third cylinder fixing plate 32 is disposed on one end of the second plate 31 near the cylinder 4 . The cylinder 4 is provided with a piston shaft 41 that moves relative to the cylinder 4 . The piston shaft 41 is connected to the third cylinder fixing plate 32 .

[0040] When the second plate 31 moves in the first direction or the second direction, the third cylinder fixed plate 32 moves in the same direction as the second plate 31. Since the piston shaft 41 is connected to the third cylinder fixed plate 32, it drives the piston shaft 41 to move, so that the cylinder 4 can maintain the pressure on the workpiece during the welding process.

[0041] Continue to refer to Figure 4 and Figure 5 The slider assembly 3 further includes a limiting sleeve 33 . The welding gun 5 is sleeved with the limiting sleeve 33 ; the limiting sleeve 33 is provided on one end of the second plate 31 away from the third cylinder fixing plate 32 .

[0042] The limiting sleeve 33 limits the position of the head of the welding gun 5 so that the head of the welding gun 5 can have a fixed landing point each time the operator operates.

[0043] The slider assembly 3 further includes a clamping plate 34 . The clamping plate 34 is disposed between the limiting sleeve 33 and the third cylinder fixing plate 32 , and the clamping plate 34 clamps the welding gun 5 .

[0044] The clamping plate 34 further defines the position of the welding gun 5 , thereby preventing the welding gun 5 from swinging and ensuring that the welding gun 5 is in a correct working position.

[0045] A fixing pin 35 is also provided on the splint 34 , and the fixing pin 35 is detachably connected to the splint 34 ; a mounting position is provided on the splint 34 , and the fixing pin 35 cooperates with the mounting position, and the fixing pin 35 is fixed by a nut.

[0046] The fixing pin 35 is passed through the clamping plates 34 and stops at the opening of the clamping plates 34 to prevent the welding gun 5 from coming out of the opening of the clamping plates 34. When the welding gun 5 is not needed, the nut is loosened to extract the fixing pin 35, and the welding gun 5 can be removed from the slider assembly 3.

[0047] Reference Figure 1 The workbench body 1 is provided with a first pad 12 and a second pad 13. The first pad 12 is fixedly connected to the workbench body 1, and the second pad 13 moves relative to the first pad 12 to adjust the position of the workpiece.

[0048] Specifically, the first pad 12 is fixed to the workbench body 1 by welding, and both the first pad 12 and the second pad 13 are copper pads.

[0049] The provision of a movable second pad 13 and a welded fixed first pad 12 can facilitate the welding of composite metal plates of various shapes and positions, and the contact area between the weldment and the second pad 13 is large and the resistance is small, thereby avoiding the generation of spark discharge and ablation of the weldment and the pad. The weld point has a beautiful appearance, and the available working time of the copper plate and the welding gun head is greatly extended, thereby avoiding the shutdown and maintenance caused by frequent repair and grinding of the welding gun head.

[0050] The workbench body 1 is also provided with a connection board 14 for connecting an energized wire to put the workbench into working state.

[0051] Specifically, the connection plate 14 is made of copper.

[0052] A first baffle 15 is also provided on the workbench body 1 for limiting the position of the cooling pipeline; a second baffle 26 is also provided on the fixed slide assembly 2. The second baffle 26 is arranged on the side of the fixed slide assembly 2 close to the hanger 21. The second baffle 26 is used to limit the position of the pipeline connecting the cylinder 4 and the control pedal.

[0053] The first stop bar limits the position of the cooling pipeline to ensure that the cooling pipeline does not fall out. The second stop bar 26 limits the position of the pipeline connecting the cylinder 4 and the control pedal. It can also limit the position of the cylinder 4 and stop the space opening formed by the first cylinder fixing plate 24 and the second cylinder fixing plate 25 to prevent the cylinder 4 from falling out.

[0054] In combination with the above, the spot welding machine workbench provided by the present invention has the following advantages: using cylinder 4 for pressurization ensures that the pressure of the same welding product is uniform and the size is adjustable, which greatly increases the thickness range of plates suitable for welding by this welding machine; the power welding switch is controlled separately, and when welding, pressure is applied first, then the power is turned on, and after the power is turned off, it is kept for a short time to allow the weld to cool and solidify, and then the cylinder 4 is released to remove the pressure, which can completely avoid local ablation caused by harmful spark discharge, greatly improve the strength and appearance of the weld, and at the same time greatly reduce the labor intensity of the operator, greatly reduce the technical difficulty of plate spot welding, and ordinary workers can master this welding process after practicing for a few hours, greatly improving welding efficiency. The provision of a movable second pad 13 and a welded fixed first pad 12 can facilitate the welding of composite metal plates of various shapes and positions, and the welded part and the second pad 13 are not prone to adhesion, the weld appearance is beautiful, and the maintenance interval of the welding gun head is greatly extended.

[0055] The movable second pad 13 enables the workbench provided by the present invention to support welding of composite metal plates of various shapes and positions.

[0056] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A spot welding machine workbench, characterized in that: include: A workbench body, wherein a positioning frame is provided on the workbench body; A fixed slide assembly, the fixed slide assembly including a hanging plate, the fixed slide assembly being connected to the positioning frame via the hanging plate; A slider assembly is connected to the fixed slide assembly, and the slider assembly and the fixed slide assembly move relative to each other; A cylinder, provided on the fixed slide assembly, for pressurizing the workpiece; A welding gun is mounted on the slider assembly. The welding gun is provided with a power button connected to a power switch. The welding gun is used to independently control the power welding operation on the workpiece. A control pedal is connected to the cylinder and is used to independently control the cylinder to pressurize.

2. The spot welding machine workbench according to claim 1, characterized in that: The fixed slide assembly includes: a first plate; A slider guide groove is provided on the first plate; The slider assembly includes a second plate body, the second plate body is engaged with the slider guide groove, and the second plate body and the slider guide groove move relative to each other.

3. The spot welding machine workbench according to claim 2, characterized in that: The fixed slide assembly also includes: a first cylinder fixing plate connected to the hanging plate and the first plate body; a second cylinder fixing plate, provided on the first plate body, specifically provided away from the hanging plate; The first cylinder fixing plate and the second cylinder fixing plate are both in contact with the cylinder.

4. The spot welding machine workbench according to claim 2, characterized in that: The slider assembly further comprises: a third cylinder fixing plate, provided on one end of the second plate body close to the cylinder; The cylinder is provided with a piston shaft, and the piston shaft moves relative to the cylinder; The piston shaft is connected to the third cylinder fixing plate.

5. The spot welding machine workbench according to claim 4, characterized in that: The slider assembly further includes: a limiting sleeve, the welding gun and the limiting sleeve are sleeved; The limiting sleeve is arranged on an end of the second plate body away from the third cylinder fixing plate.

6. The spot welding machine workbench according to claim 5, characterized in that: The slider assembly further includes a clamping plate, which is arranged between the limiting sleeve and the third cylinder fixing plate, and clamps the welding gun.

7. The spot welding machine workbench according to claim 6, characterized in that: The splint is further provided with a fixing pin, which is detachably connected to the splint; The splint is provided with a mounting position, the fixing pin cooperates with the mounting position, and the fixing pin is fixed by a nut.

8. The spot welding machine workbench according to any one of claims 1 to 7, characterized in that: The workbench body is provided with a first pad and a second pad; The first pad is fixedly connected to the workbench body; The second pad moves relative to the first pad to adjust the position of the workpiece.

9. The spot welding machine workbench according to claim 8, characterized in that: The workbench body is also provided with a wiring board for connecting energized wires.

10. The spot welding machine workbench according to claim 9, characterized in that: The workbench body is also provided with a first stop bar for limiting the position of the cooling pipeline; The fixed slide assembly is further provided with a second baffle, which is arranged on a side of the fixed slide assembly close to the hanging plate. The second baffle is used to limit the position of the pipeline connecting the cylinder and the control pedal.

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